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76mm Downpipe without catalyst or particulate filter for the following models with N57, N57N, N57S and N57Z engines:
Suited for versions with 204, 245, 258, 299 and 313pk.
Replaces OEM nr:
The versions with or without Adblue require a different downpipe.
By installing a larger bore downpipe backpressure in the exhaust drops which makes the turbo rev easier which means the turbo starts building pressure at lower RPM's. If during shifting the pressure drops it also builds back pressure faster.
By only installing a larger diameter downpipe the horsepower usually rises between 15 and 20hp and torque also goes up by 25 to 30Nm. Combining a downpipe with chiptuning brings even more extra power.
A software update (chiptuning) would be advised.
This product is not intended for use on the open road.
|With catalytic converter||No|
|Car Model||Serie 3, Serie 4, Serie 5, Serie 6, Serie 7|